Luna Innovations (LUNA) Short Interest Ratio & Short Volume $1.10 +0.04 (+3.77%) As of 10/3/2025 03:15 PM Eastern Add Compare Share Share Short Interest Stock AnalysisChartCompetitorsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Luna Innovations Short Interest DataLuna Innovations (LUNA) has a short interest of 328,800 shares. This marks a -0.75% decrease in short interest from the previous month. The short interest ratio (days to cover) is 45.7, indicating that it would take 45.7 days of the average trading volume of 131,852 shares to cover all short positions.Current Short Interest328,800 sharesPrevious Short Interest331,300 sharesChange Vs. Previous Month-0.75%Dollar Volume Sold Short$282.77 thousandShort Interest Ratio45.7 Days to CoverLast Record DateSeptember 15, 2025Outstanding Shares33,959,000 sharesPercentage of Shares Shorted0.97%Today's Trading Volume16,586 sharesAverage Trading Volume131,852 sharesToday's Volume Vs. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartLUNA Short Interest Over TimeLUNA Days to Cover Over TimeLUNA Percentage of Float Shorted Over Time Luna Innovations Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/15/2025328,800 shares $282.77 thousand -0.8%N/A45.7 $0.86 8/31/2025331,300 shares $298.17 thousand -2.2%1.1%13.9 $0.90 8/15/2025338,600 shares $260.72 thousand No ChangeN/A31.9 $0.77 7/31/2025338,600 shares $338.60 thousand -3.2%1.1%16.8 $1.00 7/15/2025349,600 shares $297.16 thousand -1.6%N/A8.3 $0.85 6/30/2025355,300 shares $314.44 thousand +1.7%1.1%4.1 $0.89 6/15/2025349,300 shares $261.98 thousand No Change1.1%16.2 $0.75 5/31/2025349,300 shares $174.65 thousand -7.5%1.1%15.7 $0.50 5/15/2025377,400 shares $188.70 thousand No ChangeN/A18.7 $0.50 4/30/2025377,400 shares $154.73 thousand No ChangeN/A7.1 $0.41 Get the Latest News and Ratings for LUNA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Luna Innovations and its competitors with MarketBeat's FREE daily newsletter. 4/15/2025377,400 shares $218.89 thousand No ChangeN/A7.1 $0.58 3/14/2025384,900 shares $265.62 thousand -0.3%N/A12.1 $0.69 2/14/2025574,500 shares $551.52 thousand -7.8%N/A6.6 $0.96 1/31/2025623,400 shares $498.72 thousand -28.3%N/A4.8 $0.80 1/15/2025870,000 shares $870 thousand -48.1%N/A0.3 $1.00 12/31/20241,670,000 shares $3.61 million No Change5.4%3.3 $2.16 12/15/20241,670,000 shares $2.84 million -1.2%5.3%9.8 $1.70 11/30/20241,690,000 shares $2.97 million +0.6%5.4%9.5 $1.76 11/15/20241,680,000 shares $2.74 million -10.2%5.4%9.4 $1.63 10/31/20241,870,000 shares $2.90 million -6.0%6.0%10.8 $1.55 10/15/20241,990,000 shares $2.90 million -2.0%6.4%11.1 $1.46 9/30/20242,030,000 shares $4.77 million -3.3%6.5%12 $2.35 9/15/20242,100,000 shares $4.47 million +0.5%6.7%8 $2.13 8/31/20242,090,000 shares $4.97 million -3.2%6.7%7.8 $2.38 8/15/20242,160,000 shares $5.25 million +1.9%6.9%7.1 $2.43 7/31/20242,120,000 shares $6.36 million +10.4%N/A6.4 $3.00 7/15/20241,920,000 shares $5.59 million -34.9%N/A4 $2.91 6/30/20242,950,000 shares $9.44 million -1.3%N/A5.4 $3.20 6/15/20242,990,000 shares $9.54 million -0.3%N/A5.6 $3.19 5/31/20243,000,000 shares $10.02 million +0.7%N/A4.7 $3.34 5/15/20242,980,000 shares $8.52 million -3.9%N/A4.9 $2.86 4/30/20243,100,000 shares $6.39 million +17.0%N/A5.4 $2.06 4/15/20242,650,000 shares $6.41 million +17.3%N/A6.1 $2.42 3/31/20242,260,000 shares $7.24 million +9.2%N/A6.7 $3.21 3/15/20242,070,000 shares $9.21 million +23.2%N/A7 $4.45 2/29/20241,680,000 shares $11.39 million +2.4%N/A11.7 $6.78 2/15/20241,640,000 shares $12.43 million +2.5%N/A11.2 $7.58 1/31/20241,600,000 shares $11.47 million +6.7%N/A9.3 $7.17 1/15/20241,500,000 shares $10.35 million +3.5%N/A8.3 $6.90 12/31/20231,450,000 shares $9.64 million +25.0%N/A7.6 $6.65 12/15/20231,160,000 shares $7.51 million -12.1%N/A6.2 $6.47 11/30/20231,320,000 shares $8.41 million -4.4%N/A7.3 $6.37 11/15/20231,380,000 shares $7.52 million +9.5%N/A7.8 $5.45 10/31/20231,260,000 shares $7.16 million +44.4%N/A7.7 $5.68 10/15/2023872,600 shares $5.66 million +21.3%N/A5.5 $6.49 9/30/2023719,200 shares $4.21 million -1.1%N/A4.8 $5.86 9/15/2023727,100 shares $4.57 million -8.0%N/A3.2 $6.28 8/31/2023790,200 shares $5.44 million -5.9%N/A3.2 $6.89 8/15/2023840,000 shares $6.48 million +3.5%N/A3.2 $7.72 7/31/2023811,400 shares $7.34 million -8.2%N/A3.1 $9.04 7/15/2023883,700 shares $7.62 million -4.3%N/A3.3 $8.62 6/30/2023923,600 shares $8.42 million +106.8%N/A3.5 $9.12 6/15/2023446,600 shares $4.47 million +13.8%N/A1.7 $10.01 5/31/2023392,300 shares $3.62 million +32.9%N/A1.7 $9.22 5/15/2023295,100 shares $2.34 million -9.2%N/A1.3 $7.92 4/30/2023324,900 shares $2.04 million -8.8%N/A1.5 $6.28 4/15/2023356,300 shares $2.42 million -33.1%N/A1.7 $6.79 3/31/2023532,300 shares $3.83 million +21.6%N/A2.3 $7.19 3/15/2023437,700 shares $2.85 million +4.9%N/A1.6 $6.50 2/28/2023417,300 shares $4.19 million +11.2%1.3%1.9 $10.04 2/15/2023375,400 shares $3.59 million -8.6%1.2%1.8 $9.57 1/31/2023410,900 shares $3.63 million +15.4%1.3%2.2 $8.84 1/15/2023356,200 shares $3.27 million +5.3%N/A2.1 $9.17 12/30/2022338,300 shares $2.97 million +16.9%1.1%2.1 $8.79 12/15/2022289,300 shares $2.68 million -2.7%0.9%2.9 $9.28 11/30/2022297,400 shares $2.01 million +18.8%1.0%3.9 $6.76 11/15/2022250,300 shares $1.58 million -31.3%0.8%3.8 $6.33 10/31/2022364,100 shares $1.89 million +12.6%1.2%5 $5.19 10/15/2022323,300 shares $1.51 million -15.9%1.0%4 $4.67 9/30/2022384,300 shares $1.71 million +27.8%1.2%4.6 $4.44 9/15/2022300,800 shares $1.51 million +0.1%1.0%1.8 $5.01 8/31/2022300,600 shares $1.73 million -26.8%1.0%1.5 $5.75 8/15/2022410,400 shares $2.63 million +1.1%1.3%1.8 $6.42 7/31/2022405,800 shares $2.63 million -21.5%1.7%1.6 $6.47 7/15/2022516,700 shares $3.15 million -32.2%2.2%1.9 $6.09 6/30/2022761,600 shares $4.44 million -48.9%3.2%2.7 $5.83 6/15/20221,490,000 shares $8.06 million +14.6%6.2%5.3 $5.41 5/31/20221,300,000 shares $7.85 million +12.1%4.3%6.9 $6.04 5/15/20221,160,000 shares $6.24 million +3.6%3.8%6.6 $5.38 4/30/20221,120,000 shares $6.18 million +26.0%3.6%7.7 $5.52 4/15/2022888,700 shares $5.55 million -8.7%2.9%6.3 $6.24 3/31/2022973,100 shares $7.50 million +1.1%3.2%7 $7.71 3/15/2022962,400 shares $6.98 million +19.6%3.1%7 $7.25 2/28/2022804,600 shares $5.50 million -13.7%2.6%6.5 $6.83 2/15/2022932,600 shares $6.76 million +30.3%3.1%7.5 $7.25 1/31/2022715,700 shares $5.22 million +14.7%2.4%4.5 $7.29 1/15/2022624,200 shares $4.62 million -18.7%2.1%3.8 $7.40 12/31/2021768,100 shares $6.48 million -5.8%2.5%4.8 $8.44 12/15/2021815,200 shares $7.08 million +7.7%2.7%5.1 $8.68 11/30/2021757,200 shares $6.34 million -6.9%2.5%4.8 $8.37 11/15/2021813,300 shares $7.55 million -24.0%2.7%5.2 $9.28 10/29/20211,070,000 shares $10.42 million +12.7%3.5%7.8 $9.74 10/15/2021949,300 shares $8.52 million -2.9%3.2%6.9 $8.97 9/30/2021978,100 shares $9.29 million -14.2%3.3%6.8 $9.50 9/15/20211,140,000 shares $11.64 million +12.9%3.8%7.9 $10.21 8/31/20211,010,000 shares $10.88 million No Change3.4%6.7 $10.77 8/13/20211,010,000 shares $11.25 million -1.0%3.4%6.7 $11.14 7/30/20211,020,000 shares $12.58 million -1.0%3.5%6 $12.33 7/15/20211,030,000 shares $10.43 million +8.7%3.7%6.6 $10.13 6/30/2021947,400 shares $10.26 million -10.6%3.4%6.4 $10.83 6/15/20211,060,000 shares $11.55 million -2.8%3.8%6.4 $10.90 5/28/20211,090,000 shares $11.06 million +10.7%3.9%6.6 $10.15 5/14/2021984,700 shares $11.06 million +1.8%3.5%5.3 $11.23 4/30/2021967,400 shares $11.27 million +4.4%3.5%5.4 $11.65 4/15/2021926,500 shares $10.55 million +20.3%3.4%4.7 $11.39 3/31/2021770,500 shares $7.90 million +0.3%2.8%3.4 $10.25 3/15/2021768,100 shares $9.24 million +3.6%2.8%3.2 $12.03 2/26/2021741,400 shares $8.85 million +7.1%2.8%2.9 $11.94 2/12/2021692,100 shares $8.17 million +15.6%2.6%2.4 $11.81 1/29/2021598,700 shares $6.51 million +8.4%2.2%2.1 $10.88 1/15/2021552,300 shares $5.87 million +33.3%2.1%2 $10.62 12/31/2020414,400 shares $3.99 million -0.2%1.5%1.7 $9.64 12/15/2020415,100 shares $3.93 million -50.0%1.5%1.7 $9.46 11/30/2020829,800 shares $8.15 million -15.1%3.1%3.7 $9.82 11/15/2020977,300 shares $7.32 million -6.0%3.6%5.2 $7.49 10/30/20201,040,000 shares $6.70 million +2.0%3.9%5.8 $6.44 10/15/20201,020,000 shares $6.66 million -7.3%3.8%5.4 $6.53 LUNA Short Interest - Frequently Asked Questions What is Luna Innovations' current short interest? Short interest is the volume of Luna Innovations shares that have been sold short but have not yet been closed out or covered. As of September 15th, investors have sold 328,800 shares of LUNA short. Learn More on Luna Innovations' current short interest. What is a good short interest ratio for Luna Innovations? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. LUNA shares currently have a short interest ratio of 46.0. Learn More on Luna Innovations's short interest ratio. Is Luna Innovations' short interest increasing or decreasing? Luna Innovations saw a decline in short interest in the month of September. As of September 15th, there was short interest totaling 328,800 shares, a decline of 0.8% from the previous total of 331,300 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does Luna Innovations' short interest compare to its competitors? Here is how the short interest of companies in the industry of "business services" compare to Luna Innovations: Research Solutions Inc. (0.05%), CTW Cayman (0.20%), Dreamland Limited (0.27%), PSQ Holdings, Inc. (18.41%), American Well Corporation (1.43%), Arrive AI Inc. (7.96%), Bridger Aerospace Group Holdings, Inc. (0.93%), Mastech Digital, Inc. (0.58%), Katapult Holdings, Inc. (3.74%), Oriental Culture Holding LTD (0.75%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Corporation ($8.81 billion), Canadian Natural Resources Limited ($5.82 billion), Reddit Inc. ($5.19 billion), Coinbase Global, Inc. ($4.52 billion), Robinhood Markets, Inc. ($4.30 billion), Charter Communications, Inc. ($3.75 billion), CoreWeave Inc. ($3.66 billion), Seagate Technology Holdings PLC ($3.57 billion), Live Nation Entertainment, Inc. ($3.33 billion), and Rocket Lab Corporation ($3.26 billion). View all of the most shorted stocks. What does it mean to sell short Luna Innovations stock? Short selling LUNA is an investing strategy that aims to generate trading profit from Luna Innovations as its price is falling. LUNA shares are trading up $0.04 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Luna Innovations? A short squeeze for Luna Innovations occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of LUNA, which in turn drives the price of the stock up even further. How often is Luna Innovations' short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including LUNA, twice per month. The most recent reporting period available is September, 15 2025. More Short Interest Resources from MarketBeat Related Companies RSSS Short Interest Data CTW Short Interest Data TDIC Short Interest Data PSQH Short Interest Data AMWL Short Interest Data ARAI Short Interest Data BAER Short Interest Data MHH Short Interest Data KPLT Short Interest Data OCG Short Interest Data Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NASDAQ:LUNA) was last updated on 10/4/2025 by MarketBeat.com Staff From Our PartnersNvidia Times 1,000,000Nvidia’s latest AI chip is a $25,000 powerhouse — with 80 billion transistors and the ability to perform 60 tr...Paradigm Press | SponsoredNvidia CEO Makes First Ever Tesla AnnouncementWhile headlines focus on Tesla’s car sales, tech analyst Jeff Brown says the real story is Tesla’s role in a $...Brownstone Research | SponsoredURGENT: The Market's 3 Red Flags Are FlashingThe warning signs that preceded the 2008 crash are reappearing: an irrational NASDAQ bubble, a record-high gol...StockEarnings | SponsoredU.S. Government Sparking Crypto RallySecond Chances Don't Come Often in Crypto My "Crypto Bull Run Millionaire Blueprint" reveals everything - w...Crypto 101 Media | SponsoredNVIDIA's Worst Nightmare?$2 TRILLION Quantum Gold Rush While everyone fights over expensive AI stocks... 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